A man from Winona is charged with assault and fleeing officers after allegedly stealing a semi tractor and leading police on a 50-mile, hour-long chase early Saturday morning through Minnesota City, Rollingstone, Elba, Saint Charles and Lewiston in southeast Minnesota. Prosecutors say 42-year-old Michael Kronebusch ran stop signs, threw clothing and other items out the window, tried to run a squad car off the road, and rammed two squad cars, apparently trying to run over one of them. Officials say when Kronebusch was finally stopped, he wouldn’t come out of the semi tractor and had to be tased and pulled out.